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A galvanometer has an internal resistance of 30?and deflects full scale for a 60??A current. In order to make an ammeter read currents up to 40A, a resistor must be placed in parallel with the galvanometer. What is the magnitude of this resistor?
the coefficient of kinetic friction between the table and the block is 0.320. Sand is gradually added to the bucket until the system just begins to move. Compute acceleration of the motion.
After having collected samples along the shore all day long, a marine biologist walks back to her campsite, 1.69 km away. Her dog runs ahead, at twice the speed, reaches the campground and turns around until it meets her again. Then, the dog proce..
What is the terminal speed for an 84.00 skier going down a 38.0 degree snow-covered slope on wooden skis = 0.06? Assume the skier is 1.70 m tall and 0.500 m wide.
A rock of mass 33 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 242 N. What is the magnitude of the acceleration of rock.
Two teams of nine members each engage in a tug of war. The first team's members have average masses of 70 kg and exert average forces of 1350 N horizontally, What is the acceleration of the two teams
A resting person requires 14.5-L of per hour to maintain metabolic activities. Such a person breathes in 0.510L of air at approximately 32.0 degrees celsius with each breath. The inhaled air is 20.9 percent while the exhaled air is 16.3percent.
suppose the radius of the ball is very small compared to other length scales in the problem. Take starting level as step 0, the next step down as step 1, and so on.
Consider a standing wave on the string with a frequency equal to the fifth harmonic (fn = nf1 with n = 5). How many nodes and antinodes does this standing wave possess.
calculate the speed of the block at the instant the dielectric leaves the capacitor assuming it starts at rest and that the voltage across the capacitor after the dielectric is removed is measured to be 900 V.
An undersea research chamber is spherical with an external diameter of 5.40 m. The mass of the chamber, when occupied, is 70400 kg. It is anchored to the sea bottom by a cable.
One wire carries a current of 5.008 A into it. Another wire carries a current of 5 A out of it. Explain how long would it take for the sphere to increase in potential by 4000 volts?
What is the coefficient of kinetic friction between sled and incline? (Enter 0 if sled does not move.)
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